Why it works: Egg and lemon are a kitchen classic. They rank in the top 19% of all ingredient pairs, and cooks put them together in 44,316 recipes. Both carry (e,e)-2,4-decadienal, which smells fatty, deep fried. The science ↓
Calf's Sweetbreads, Stewed
Ingredients
Directions
Cook the sweetbreads
Put the sweetbreads into a stewpan with the stock and simmer gently for 45 minutes or more.
Remove the sweetbreads and place them on a hot dish.
Finish the sauce
Take the gravy off the heat for a minute, then gradually add the egg yolk.
Return the sauce to a gentle heat until it thickens, but do not let it boil.
Just before serving, squeeze in the lemon juice.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Egg and lemon barely smell alike, yet cooks put them together in 44,316 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Calf's sweetbreads
- Form the main body of the dish, becoming tender and soft during gentle simmering.
- Stock
- Provides the cooking liquid and the savoury flavour base for the gravy.
- Egg yolk
- Thickens the gravy into a smooth, rich sauce as it gently sets with heat.
- Lemon juice
- Adds acidity that brightens and balances the rich sauce.
The step that matters
Return the sauce to a gentle heat without boiling. Egg yolk thickens by setting proteins that coagulate with heat. If the sauce boils, the yolk can curdle and turn grainy, so the sauce must stay gently warm until it thickens.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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